Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a26af01815225f5…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 11:17:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e1d43c76a88a9f26b34d37b23d0d9e8f SHA-1: 32b0ddde40198a8a7c07e6f84cb4433ca56ef1a0 SHA-256: 9a26af01815225f57e625e6ddb14262c19bdf3535ccd1c30b7742fa4da3ab4a3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/406889139/coin-master-time-hack-ios-game-hack PDF link annotation
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-hack-tool-exe_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-groups-in-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/get-free-robux-on-a-server-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-hack-for-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-coinmaster-spins_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-codes-rob-the-bank-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/instantrobux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-code-that-everyone-can-use_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-cp_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-robux-hack-apk-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/robux-games_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003390.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3390 22584 bytes
SHA-256: 3c11430beccadc0da3c1eff134611bc0dbbc9c1def775a274027749c01da5aff
font_01_sfnt_off00006600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6600 18264 bytes
SHA-256: e044f2111956dd3925dd1ff7e5ca2de0ff7ca221e79223e1f430a3df40f93c8b

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